@article{etna_vol55_pp532-546,
  author  = {Kirk M. Soodhalter},
  title   = {A note on augmented unprojected Krylov subspace methods},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {55},
  year    = {2022},
  pages   = {532--546},
  doi     = {10.1553/etna_vol55s532},
}